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TABLE 1 <br /> LIQUID LEVEL DATA <br /> SHELL SERVICE STATION <br /> 620 WEST CHARTER WAY,STOCKTON,CALIFORNIA <br /> (Measurements in feet) <br /> Monitoring Reference Depth to Depth to Groundwater Product Well <br /> Well Date Elevation Groundwater' Product' Elevation Thickness Depth <br /> (top of casing)' <br /> MW-1 10/30/91 8778 3097 NR 5681 --- NR <br /> 01/28/92 3128 NR 5650 --- NR <br /> 04/30/92 31 21 NR 5657 — 401 <br /> 07/10/92 3142 NR 5636 --- 401 <br /> 10/09/92 3492 NR 5286 — 40.1 <br /> MW-2 10/30/91 8965 NM NR NA NR <br /> 11/15/91 FLH NR 002 NR <br /> 01/28/92 FLH NR 033 NR <br /> 04/30/92 34 19 3378 55 97* 041 NR <br /> 07/10/92 3492 3455 55 21* 037 NR <br /> 10/09/92 NR 3280 NR 035 NR <br /> NOTES 1 = Measurement and reference elevation taken from notch/mark on top north side of well casing <br /> 2 - Elevation referenced to mean sea level <br /> = No free product or sheen <br /> FLH = Floating liquid hydrocarbons <br /> NR = Not reported by Emcon Associates of Sacramento, Caldomla <br /> = Corrected groundwater elevation- CDTW=DTW- (SP G x LHT) <br /> CDTW= Corrected depth to water <br /> DTW= Measured depth to water <br /> SP G =Specific gravity unweathered gasoline=0 75, <br /> diesel=0 80 <br /> LHT= Measured liquid hydrocarbon thickness <br /> Aegis Envlronmenial Inc <br /> 91 246/December B 1992 <br />